make space if needed when adding lines to a definition

0023-on.keychord_press

@@ -54,7 +54,10 @@ on.keychord_press = function(chord, key)
 			maybe_update_key_in_definitions(old_definition_name, definition_name, Cursor_node)
 			pan_viewport_to_contain_cursor(Cursor_node)
 			if chord == 'return' then
-				A()
+				A1(Cursor_node.key)
+				populate_collision_data()
+				move_others(Cursor_node)
+				A1(Cursor_node.key)
 			else
 				B()
 			end

0129-prepare_to_move

@@ -1,18 +1,8 @@
 -- pad out one node fully, and all other nodes just enough to keep them from overlapping.
 -- We don't want cascading movements to get too chaotic.
 prepare_to_move = function(target)
-	for _,def in pairs(Definitions) do
-		assert(def.w)
-		assert(def.h)
-		if def.pos == nil then def.pos = {} end
-		if def.hs == nil then def.hs = {} end
-		def.hs.x = def.w/2
-		def.hs.y = def.h/2 + 30
-		def.pos.x = def.x + def.hs.x
-		def.pos.y = def.y + def.hs.y
-		if def == target then
-			def.hs.x = def.hs.x + 50
-			def.hs.y = def.hs.y + math.max(30, math.min(def.h/3, 200))
-		end
-	end
+	populate_collision_data()
+	-- give the target a little more buffer
+	target.hs.x = target.hs.x + 50
+	target.hs.y = target.hs.y + math.max(30, math.min(target.h/3, 200))
 end

0135-populate_collision_data

@@ -0,0 +1,12 @@
+populate_collision_data = function()
+	for _,def in pairs(Definitions) do
+		assert(def.w)
+		assert(def.h)
+		if def.pos == nil then def.pos = {} end
+		if def.hs == nil then def.hs = {} end
+		def.hs.x = def.w/2
+		def.hs.y = def.h/2 + 30
+		def.pos.x = def.x + def.hs.x
+		def.pos.y = def.y + def.hs.y
+	end
+end